The Frasers of Inverallochy, who inherited Castle Fraser, were a branch of Clan Fraser of Lovat.

Charles Fraser of Inverallochy, whose father took ownership of Castle Fraser in the early 1700s, died on the field at Culloden after leading the Frasers of Lovat into battle.

Paula Swan, property manager at Castle Fraser, said the Laird’s Lug dates from between 1575 to 1618, when the 6th Laird of Fraser, Michael Fraser, embarked on a major renovation of the original medieval tower.